Digital SAT Math Practice Question #2550
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Geometry & Trig Rule: Always sketch the triangle or circle and check for standard Pythagorean triples (3-4-5, 5-12-13, 7-24-25, 8-15-17).
Circumference $= 2\pi(10) = 20\pi$. Fraction $= \frac{5\pi}{20\pi} = \frac{1}{4}$....
Distractor Analysis: Trap choice eliminates careless test-takers who confuse roots with coordinates...
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